3772222161 has 8 divisors (see below), whose sum is σ = 5074140000. Its totient is φ = 2492559552.

The previous prime is 3772222147. The next prime is 3772222211. The reversal of 3772222161 is 1612222773.

3772222161 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3772222161 - 2¹⁴ = 3772205777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3772222561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5563411 + ... + 5564088.

It is an arithmetic number, because the mean of its divisors is an integer number (634267500).

Almost surely, 2^3772222161 is an apocalyptic number.

It is an amenable number.

3772222161 is a deficient number, since it is larger than the sum of its proper divisors (1301917839).

3772222161 is a wasteful number, since it uses less digits than its factorization.

3772222161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11127615.

The product of its digits is 14112, while the sum is 33.

The square root of 3772222161 is about 61418.4187438915. The cubic root of 3772222161 is about 1556.6790740762.

The spelling of 3772222161 in words is "three billion, seven hundred seventy-two million, two hundred twenty-two thousand, one hundred sixty-one".